??????

G.652????

??ITU-T.G.652?????????????????????????1?3um????????????1310nm????0?36dB?km??????????????????????????????????????????????????????????????0.22dB?km??1550nm?????
 

G.653????

??ITU-T.G.653?????????????????DSF?Dispersion Shifled Fiber????????????????1550nm??????????????????????????????????????AT&T????DSF???????1550nm????????????????????????????????1550nm??????????????????*??G.653??????????????????????G.655????????
 

G.655????

??ITU-T.G.655???????????????????NZDSF??NonZero Dispersion Shifted Fiber??????????????1550nm?????????ITU-T.G.655??????1530-1565nm?????????0.1-6.0ps?nm.km???????????????????????AT&T?TrueWave???Corning?SMF-LS?????????????1567.5nm????????0.07ps?nm2.km???Corning?LEAF??????"???"????
 

LEAF??

????LEAF??Large Effective Area Fiber???????????????? 1550nm???????????????????????"????"???????????????????????????????EDFA????????DWDM?????????
 

????

?????????????????????????????????????????????????????????????????????????4?8?12?16???????????0?28mm???4?8??0?3mm???12?16?????????????????????????????30?40?50um???????????????????????????????????????????????????????????????????????????????320??3456??????????????????
 

????????

??ADSS??All Dielectric self-support????????????????????????????????FRP???????????????????????????????????????????ADSS????????????????????
 

??????

??OPGW??Optical Power Grounded Waveguide????????????????????????????????????????????????????????????????????????????????????????????????????????????
 

????

????????????????????????????????????? ???10m?????1??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????